assertCollectionIsUnmodifiable(values, sampleValue);
    }

    // Test #entries()
    assertCollectionIsUnmodifiable(multimap.entries(), immutableEntry(sampleKey, sampleValue));
    assertMultimapRemainsUnmodified(multimap, originalEntries);

    // Iterate over every element in the entry set
    for (Entry<K, V> entry : multimap.entries()) {
      assertMapEntryIsUnmodifiable(entry);
    }

      assertCollectionIsUnmodifiable(values, sampleValue);
    }

    // Test #entries()
    assertCollectionIsUnmodifiable(multimap.entries(), immutableEntry(sampleKey, sampleValue));
    assertMultimapRemainsUnmodified(multimap, originalEntries);

    // Iterate over every element in the entry set
    for (Entry<K, V> entry : multimap.entries()) {
      assertMapEntryIsUnmodifiable(entry);
    }

 *
 * <p>The {@link #get}, {@link #removeAll}, and {@link #replaceValues} methods each return a {@link
 * SortedSet} of values, while {@link Multimap#entries()} returns a {@link Set} of map entries.
 * Though the method signature doesn't say so explicitly, the map returned by {@link #asMap} has
 * {@code SortedSet} values.
 *

 *
 * <p>Like any other {@code Map<Class, Object>}, this map may contain entries for primitive types,
 * and a primitive type and its corresponding wrapper type may map to different values.
 *
 * @param <B> the common supertype that all entries must share; often this is simply {@link Object}
 * @author Ben Yu
 * @since 13.0
 */

 *
 * <p>Like any other {@code Map<Class, Object>}, this map may contain entries for primitive types,
 * and a primitive type and its corresponding wrapper type may map to different values.
 *
 * @param <B> the common supertype that all entries must share; often this is simply {@link Object}
 * @author Ben Yu
 * @since 13.0
 */

          std::unique_ptr<TensorSliceReader::VarToDataTypeMap>>
CheckpointReader::BuildV2VarMaps() {
  CHECK(v2_reader_ != nullptr);
  CHECK(v2_reader_->status().ok());

  // First pass: filters out the entries of the slices.
  std::unordered_set<string> filtered_keys;
  BundleEntryProto entry;
  v2_reader_->Seek(kHeaderEntryKey);
  for (v2_reader_->Next(); v2_reader_->Valid(); v2_reader_->Next()) {

    private final Collection<Entry<K, V>> entries;

    UnmodifiableEntries(Collection<Entry<K, V>> entries) {
      this.entries = entries;
    }

    @Override
    protected Collection<Entry<K, V>> delegate() {
      return entries;
    }

    @Override
    public Iterator<Entry<K, V>> iterator() {
      return unmodifiableEntryIterator(entries.iterator());
    }

        private int index = biMap.firstInInsertionOrder;
        private int indexToRemove = ABSENT;
        private int expectedModCount = biMap.modCount;

        // Calls to setValue on inverse entries can move already-visited entries to the end.
        // Make sure we don't visit those.
        private int remaining = biMap.size;

        private void checkForComodification() {
          if (biMap.modCount != expectedModCount) {

  public static class ImmutableEnumMapGenerator extends TestEnumMapGenerator {
    @Override
    protected Map<AnEnum, String> create(Entry<AnEnum, String>[] entries) {
      Map<AnEnum, String> map = new HashMap<>();
      for (Entry<AnEnum, String> entry : entries) {
        map.put(entry.getKey(), entry.getValue());
      }
      return Maps.immutableEnumMap(map);
    }
  }

  @J2ktIncompatible

                  @Override
                  protected SetMultimap<String, String> create(Entry<String, String>[] entries) {
                    SetMultimap<String, String> multimap = HashMultimap.create();
                    for (Entry<String, String> entry : entries) {
                      multimap.put(entry.getKey(), entry.getValue());
                    }
                    return multimap;
                  }